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Running into a problem with opentk 1.1, where all GL calls result in a NotImplementedException.

I am assuming this has to do with the new interop method described in the beta 3 release notes. This impacts my own code, and the opentk examples project as well. Tested this with beta 3 and rc 1 and have the same problem with both. This problem is not present in beta 1 and 2.

As I have just been getting to know opentk over the past month, I am not certain if this is a bug or a configuration problem on my end, and was hoping someone could offer some insight. Running Gentoo Linux on x86_64 with the proprietary nvidia drivers version 319.76, libsdl2 version 2.0.1, and mono 3.2.3.

This exception indicates that OpenTK was not built correctly. This is caused by a long-standing bug in MonoDevelop, where it fails to respect the "AfterBuild" events defined in OpenTK.csproj. (Consider adding your vote to the Mono bug tracker.)